Door hardware

• US 3,261,051 A
• Filed: 04/27/1964
• Issued: 07/19/1966
• Est. Priority Date: 04/27/1964
• Status: Expired due to Term

• Current Assignee: Dale Priest Harry
• Original Assignee: Dale Priest Harry
• Inventors: DALE PRIEST HARRY
• Application Number:
  US04/362,794
• Time in Patent Office: 813 Days
• US Class Current: 16/288
• CPC Class Codes: E05D 15/463 specially adapted for overhead wings
• CPC Class Codes: E05Y 2900/132 Doors

Claims

1. A DOOR SUPPORTING STRUCTURE ADAPTED TO SUPPORT A DOOR IN ASSOCIATION WITH FRAMING DEFINING A DOOR OPENING;

THE STRUCTURE COMPRISING A MAIN BRACKET ADAPTED TO BE SECURED TO SAID DOOR FRAME AND A DOOR BRACKET ADAPTED TO BE SECURED TO THE DOOR, FIRST AND SECOND PIVOTS ON SAID MAIN BRACKET AND FIRST AND SECOND PIVOTS ASSOCIATED WITH SAID DOOR BRACKET, A MAIN LINK PIVOTED TO SAID FIRST PIVOTS AND A CONTROL LINK PIVOTED TO SAID SECOND PIVOTS, SAID PIVOTS AND SAID LINKS BEING SUCH THAT UPON MOVEMENT OF THE DOOR, THE DOOR MOVES FROM A CLOSED TO AN OPEN POSITION, AND A COMPRESSION SPRING CONNECTED BETWEEN SAID MAIN BRACKET AND SAID MAIN LINK TO URGE SAID MAIN LINK IN A DIRECTION TOWARD THE OPEN POSITION OF THE DOOR, SAID MAIN LINK BEING FORMED SO AS TO TERMINATE IN A TORQUE ARM, PIVOTAL CONNECTION MEANS PIVOTALLY CONNECTING SAID COMPRESSION SPRING TO SAID TORQUE ARM, SAID PIVOTAL CONNECTION MEANS BEING SUBSTANTIALLY POSITIONED BETWEEN SAID FIRST PIVOTS WHEN THE DOOR IS IN CLOSED POSITION, SAID COMPRESSION SPRING BEING ARRANGED TO RELEASE ENERGY AS THE ARM MOVES TOWARD ITS OPEN POSITION.